/usr/share/octave/packages/signal-1.3.0/square.m is in octave-signal 1.3.0-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | ## Author: Paul Kienzle <paulkienzle@Avocado.local> (2006)
## This program is granted to the public domain.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{s} =} square (@var{t}, @var{duty})
## @deftypefnx {Function File} {@var{s} =} square (@var{t})
## Generate a square wave of period 2 pi with limits +1/-1.
##
## If @var{duty} is specified, the square wave is +1 for that portion of the
## time.
##
## @verbatim
## on time
## duty cycle = ------------------
## on time + off time
## @end verbatim
##
## @seealso{cos, sawtooth, sin, tripuls}
## @end deftypefn
function v = square (t, duty = 0.5)
if (nargin < 1 || nargin > 2)
print_usage;
endif
t /= 2*pi;
v = ones(size(t));
v(t-floor(t) >= duty) = -1;
endfunction
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